jetbrains.exodus.crypto.StreamCipherOutputStream.kt Maven / Gradle / Ivy
/**
* Copyright 2010 - 2022 JetBrains s.r.o.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* https://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package jetbrains.exodus.crypto
import jetbrains.exodus.kotlin.notNull
import java.io.FilterOutputStream
import java.io.OutputStream
class StreamCipherOutputStream(output: OutputStream, private val cipher: StreamCipher) : FilterOutputStream(output) {
override fun write(b: Int) {
super.write(cipher.cryptAsInt(b.toByte()))
}
override fun write(bytes: ByteArray?) {
bytes.notNull { "Can't write null array" }.forEach { super.write(cipher.cryptAsInt(it)) }
}
override fun write(bytes: ByteArray?, off: Int, len: Int) {
bytes.notNull { "Can't write null array" }.drop(off).take(len).forEach { super.write(cipher.cryptAsInt(it)) }
}
}